Tungsten Carbide Ring/Tungsten Seal Ring
This is a tungsten carbide sealing ring made from cemented carbide, designed for use in mechanical seals in petroleum, chemical, and industrial equipment. It is available in flat ring (PH) and step type (TH) configurations, with outer…
Product Overview
This is a tungsten carbide sealing ring made from cemented carbide, designed for use in mechanical seals in petroleum, chemical, and industrial equipment. It is available in flat ring (PH) and step type (TH) configurations, with outer diameters ranging from 12 mm to 400 mm. The ring is ground to tight tolerances after sintering to ensure minimal dimensional variation and superior sealing performance. It is manufactured to customer drawings and can be produced in standard or custom shapes.
Key Benefits
- High wear resistance in abrasive or corrosive environments, extending seal life and reducing maintenance frequency
- Superior dimensional stability and no deformation under compression due to high hardness and strength
- Corrosion resistance from added rare elements, improving durability in aggressive chemical service
- Minimal grinding allowance after sintering, reducing finishing cost and time
- Available in flat and step configurations to match existing seal designs without redesign
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Cemented tungsten carbide (WC-Co) |
|---|---|
| Grades Available | YG8 YG15 YS2T YN8, selected based on service conditions |
| Shape | Flat ring (PH) and step type ring (TH), custom shapes available |
| Outer Diameter | 12 mm to 400 mm |
| Finish | Double ground for tight tolerance and smooth surface |
| Lead Time | Stock items ship 3-5 days after payment; customised items quoted per order |
Problems It Solves
- Steel or polymer seals wear out quickly in abrasive or corrosive fluids, leading to leaks and unplanned downtime
- Seal deformation under pressure causes misalignment and premature failure in high-load applications
- Poor dimensional consistency after sintering increases the need for grinding, raising processing cost
- Lack of corrosion resistance in standard materials shortens seal life in chemical environments
- Inconsistent quality in off-the-shelf rings leads to seal failure and rework
Who It Is For
- Pump and valve manufacturers needing wear-resistant sealing components
- Chemical and petrochemical plant maintenance teams replacing failed seals in corrosive systems
- Machinery builders integrating long-life seals into high-duty equipment
- OEMs sourcing custom sealing rings with precise dimensions and material grades
Application Scenarios
- Mechanical seals in centrifugal pumps handling abrasive slurries in oil and gas applications
- Sealing rings in chemical process pumps exposed to acids, alkalis, and hydrocarbons
- High-pressure valves and actuators where seal integrity must be maintained under cyclic loading
- Rotary shaft seals in industrial machinery where long service life and zero leakage are required
Technical Features
- Available in flat (PH) and step (TH) ring types for different seal designs
- Outer diameter range from 12 mm to 400 mm, suitable for a wide range of equipment
- Double-ground finish to minimize size variation and improve sealing performance
- Added corrosion-resistant rare elements during processing for longer service life
- High strength and hardness prevent deformation under compression and pressure cycling
Materials and Grades
- WC-Co cemented carbide with cobalt content balanced for hardness and toughness
- YG8 for general wear and corrosion resistance in moderate-duty service
- YG15 for applications with impact or pressure shock due to higher cobalt content
- YS2T for high hardness (92 HRA) in clean abrasive environments
- YN8 for anti-cession performance in high-stress sealing applications
Customisation Options
- Manufactured to customer drawings including non-standard and specially shaped rings
- Grade selected based on fluid, abrasiveness, pressure, and temperature
- Flat, step, or custom profile rings produced to match existing seal designs
- Samples available for pre-testing before bulk order commitment
How This Part Is Made
Drawing review and grade selection based on service conditions
Powder blending with corrosion-resistant additives
Pressing on imported press for uniform green density
Over-pressure sintering to eliminate porosity and stabilize structure
Double grinding to achieve tight tolerance and smooth surface
Dimensional and physical inspection before shipping
Packing and shipping with inspection photos for confirmation
Quality Control
- Physical properties, shape, and tolerance are checked before shipping
- Every order is tested before bulk production is released
- Inspection photographs of the finished order are sent for confirmation before delivery
- Blank edge drop depth not more than 0.33 mm
- No peeling, bubbling, delamination, crack, porosity, over-burning, or under-burning on the surface
Use Guide
- Provide the operating environment, including fluid type, temperature, pressure, and abrasiveness to select the correct grade
- Send the drawing with required dimensions, tolerance, and surface finish for accurate production
- Use the ring in a properly supported seal housing to avoid edge loading and chipping
- Avoid sudden thermal shock when installing or operating the seal
- Keep a sample from the first batch for comparison during future quality checks
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Steel sealing ring | Steel is cheaper and easier to machine but wears quickly in abrasive or corrosive service, leading to higher long-term cost and downtime |
| Ceramic sealing ring | Ceramic has similar hardness but is more brittle under impact; carbide better withstands pressure cycling and shock loading |
| Polymer sealing ring | Polymer degrades in high temperature or aggressive chemicals; carbide maintains integrity across a wider range of conditions |
Tungsten Carbide Ring/Tungsten Seal Ring FAQ
Are you a trade company or a manufacturer?
A manufacturer. The company has produced tungsten carbide parts for over 15 years and accepts custom drawings and OEM/ODM orders.
Where is your factory located?
Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.
Can you make sealing rings to my own drawing?
Yes. OEM and ODM to customer drawings is standard, including flat, step, and custom-shaped rings.
Can I get a sample before placing a bulk order?
Yes. Samples are available for pre-testing. Send the drawing and service conditions for a quote.
How long does an order take?
Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.
How do I know the parts were checked before they shipped?
Physical properties, shape, and tolerance are inspected before shipping, and detailed inspection photographs are sent for confirmation before delivery.
Which grade should I choose?
It depends on the service. YG8 for general wear, YG15 for impact resistance, YS2T for high hardness, YN8 for anti-cession. Send the operating conditions for a recommendation.
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View Details →Get A Price For Tungsten Carbide Ring/Tungsten Seal Ring
Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.